Carcassonne's pieces are tiles, not cards, so it belongs among the tile games even though its laying mechanic resembles some card games.
Domino and Tile Games covers games played with tiles rather than cards or a fixed board, including Dominoes, Mahjong and Carcassonne. Any tile-based game belongs here, whether the tiles are matched, laid to build a shared layout, or drawn and discarded, even where the mechanic resembles a card game.